--- title: "Igentix" path: "/developers/tools/igentix" version: "1.0.0" author: "Hydrate" createdAt: "2026-07-12T21:03:41.837Z" updatedAt: "2026-07-12T21:03:41.837Z" --- # Igentix | **Type** | AI agent payments demo (MCP endpoint) | | **Status** | Testnet (Radix Stokenet) | | **Category** | Developer Tool / AI Agents | | **Standards** | x402 + AP2 | | **Network** | Radix Stokenet (testnet) | | **Settlement** | XRD and USDC, gas-free | | **Website** | [demo.igentix.app](https://demo.igentix.app) | | **MCP endpoint** | `https://demo.igentix.app/mcp` | ## Overview **Igentix** is a testnet demonstration platform that lets [AI agents](/contents/tech/core-concepts/radix-for-ai-agents) such as Claude and ChatGPT autonomously discover, buy, and pay for services on [Radix](/contents/tech/core-protocols/radix-engine). An agent connects to Igentix through a [Model Context Protocol (MCP)](/developers/infrastructure/ai-agents-and-x402) endpoint and can then complete a full purchase — find a priced service, pay for it, and receive the result — with no gas token and no wallet pop-up. Everything runs on the Radix Stokenet testnet, so the tokens it moves carry no real value. ## x402 and AP2 Igentix builds on two emerging open standards for the agent economy. **[x402](/developers/infrastructure/ai-agents-and-x402)** is an HTTP-native payment protocol initiated by Coinbase in 2025 that activates the long-reserved `402 Payment Required` status code: a server answers a request with machine-readable payment terms (price, currency, receiving account, network), the client authorizes an exact-amount payment, a facilitator settles it on-ledger and can sponsor the network fee, and the server returns the resource. **AP2** (Agent Payments Protocol), announced by Google in 2025, adds the authorization layer — a cryptographically signed *mandate*, structured as an SD-JWT verifiable credential, that captures what a human authorized: which items and payees are allowed, a per-payment cap and total budget, a recurrence schedule, and a validity window. x402 moves the payment; AP2 records the authority behind it. Igentix settles AP2-authorized payments over x402 in [USDC](/contents/tech/core-concepts/stablecoins). ## Ledger-enforced spending policy Both standards leave enforcement open: a mandate is authenticated policy, but whoever executes the payment must still choose to honour it. Igentix closes that gap by anchoring the limits on-chain. An AP2 spend mandate's allowed payee, per-day cap, total budget, number of days, and time window are pinned to the [Radix ledger](/contents/tech/core-protocols/radix-engine), which rejects any payment that breaches them even if the Igentix service itself is compromised. Every payment is also checked against a spending policy before it settles — a hard cap per transaction, an allowlist of callable methods and on-chain components, and a threshold above which a human must co-sign in their wallet. A leaked agent key cannot move funds beyond these bounds. ## Demos and MCP tools Once an agent is connected, it can run a set of demos exposed as MCP tools. Two entry-level demos pay on-chain services in XRD from a shared demo treasury and need no setup: buying a single access key, and bundling two services into one [atomic](/contents/tech/core-concepts/atomic-composability), all-or-nothing purchase. Four further demos spend the user's own USDC — paying for off-chain work with a tamper-proof on-chain receipt, metering thousands of sub-cent requests that batch-settle in a single payment, routing a large payment to a 2-of-2 approval treasury that waits for a human co-sign, and renewing a daily subscription under a signed AP2 spend mandate. The endpoint also exposes read-only tools to list, search, and inspect the available services. A companion agent-payments toolkit in the ecosystem is [AgentWallet for Radix](/developers/tools/agent-wallet-ai). ## Connecting an agent An agent connects by adding `https://demo.igentix.app/mcp` as a custom MCP connector — in Claude via Customize → Connectors → Add custom connector, or in ChatGPT via developer-mode Connectors. The shared endpoint runs the two XRD demos from a common treasury. To run the USDC and AP2 demos, a user opens the Igentix setup flow, connects a [Radix Wallet](/contents/tech/core-protocols/radix-wallet), funds a capped and revocable Agent Vault, and mints a personal endpoint of the form `demo.igentix.app/mcp/u/`; the agent then pays from that vault under the user's own caps. ## External Links - [Igentix — demo gallery](https://demo.igentix.app) - [x402 & AP2, explained (Igentix)](https://demo.igentix.app/info) - [x402.org — protocol site](https://x402.org)